Modeling How Edges and Corners Affect the Ignition of Homogeneous Reactive Solids

Abstract

The effect of geometry on the ignition behavior of solid propellants has been investigated both theoretically and experimentally. Physical and mathematical formulations of the theoretical problem are presented, where extensive use is made of the reactive solid concept, with ignition being controlled by a solid phase exothermic chemical reaction. Mathematical equations are described in different two dimensional domains, and solved numerically over a wide range of physico-chemical parameters utilizing the explicit finite difference method. Geometries considered are: acute wedges having included angles of Pi/2, and Pi/4 and Pi/8, and in addition, the effect of rounding Pi/2 and Pi/4 angles is investigated by inclusion of a radius of curvature gamma. Keywords: Ignition; Ignition modeling; Reactive solids; Homogeneous reactive solids, Solid propellants.

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Document Details

Document Type
Technical Report
Publication Date
Oct 14, 1988
Accession Number
ADA200107

Entities

People

  • C. E. Hermance
  • L. G. Vorsteveld

Organizations

  • University of Vermont

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Computational Science
  • Difference Equations
  • Geometry
  • Heat Energy
  • Heat Of Combustion
  • Heat Transfer
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Solid Propellants
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Combustion Dynamics and Shock Wave Physics.
  • Rocket Propulsion.